This enum lists available toolbar controls.

Public Enum ControlType
  _3DNavPointTriplet1 = &H138c
  _3DNavPointTriplet2 = &H138d
  _3DNavStepSizeSliderControl = &H138a
  _3DNavStepsPerSecSliderControl = &H138b
  _3DNavViewComboCtrl = &H1388
  _3DNavZoomSliderControl = &H1389
  ArrayEditNameControl = 6
  CustomControl = 20
  DimStyleControl = 11
  FindTextControl = &H13
  LayerControl = 1
  LayerFilterComboControl = &H13a2
  LayerLockTransparencySliderControl = &H13a1
  LayerStateComboControl = &H13a0
  LightColorCorrectCtrl = &H1393
  LightSliderControl1 = &H138e
  LightSliderControl2 = &H138f
  LightSliderControl3 = &H1390
  LightSliderControl4 = &H1391
  LightSliderControl5 = &H1392
  LineTypeControl = 2
  LineWeightControl = 4
  MldStyleControl = &H12
  NamedViewControl = &H10
  OPTColorControl = 3
  PlotStyleControl = 9
  RedoSkinnyButtonControl = 13
  RefblknameControl = 5
  RenderImageQualityControl = &H1396
  RenderOutputFileControl = &H1397
  RenderOutputSizeControl = &H1398
  RenderProgressControl = &H1395
  RenderStyleControl = &H1394
  TblStyleControl = 15
  TextHeightComboControl = &H13a3
  TxtStyleControl = 14
  UCSControl = 10
  UndoSkinnyButtonControl = 12
  ViewControl = 8
  ViewportScaleControl = 7
  VSEdgeColorControl = &H139a
  VSEdgeOverhangSliderControl = &H139b
  VSIntersectionEdgeColorControl = &H139f
  VSJitterEdgeSliderControl = &H139c
  VSObscuredEdgeColorControl = &H139e
  VSSilhouetteEdgeWidthSliderControl = &H139d
  VSStylesComboControl = &H1399
  WorkspacesControl = &H11
End Enum